When you buy three pieces, please leave a message the vest (S-4XL) and pants (29-40) size to us .
If not informed, we will send you the default size .
If you don’t know which size you need ,please tell us your weight ,height ,chest and pant waist size ,
we will suggest the best size to you (For reference only, because the body is not the same for everyone.
the actual subject ). Thank you for your understand !!!